Add HACS integration, 8 Lovelace cards, and pairing page

New HA integration (integration/custom_components/luma_home/) with:
- WS API: luma/get_config (Lovelace→v2 bridge), luma/pair, luma/pair_status
- Config flow with dashboard URL path setting

8 HACS frontend cards (cards/) matching TV app visual spec:
- toggle, range, climate, media, curtain, action, vacuum, weather
- Glass card design: rgba(36,40,48,0.75) bg, 22px radius, accent glows

Pairing page (pairing/luma-pair.html) for TV token provisioning.
Web dashboard (web-dashboard/) — legacy config editor (deprecated).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

integration/custom_components/luma_home/config_flow.py

@@ -0,0 +1,66 @@
+"""Config flow for Luma Home."""
+
+import voluptuous as vol
+from homeassistant import config_entries
+from homeassistant.core import callback
+
+from .const import DOMAIN, CONF_DASHBOARD_URL_PATH, DEFAULT_DASHBOARD_URL_PATH
+
+
+class LumaHomeConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
+    """Handle a config flow for Luma Home."""
+
+    VERSION = 1
+
+    async def async_step_user(self, user_input=None):
+        """Handle the initial step."""
+        if self._async_current_entries():
+            return self.async_abort(reason="single_instance_allowed")
+
+        if user_input is not None:
+            return self.async_create_entry(
+                title="Luma Home",
+                data=user_input,
+            )
+
+        return self.async_show_form(
+            step_id="user",
+            data_schema=vol.Schema(
+                {
+                    vol.Required(
+                        CONF_DASHBOARD_URL_PATH,
+                        default=DEFAULT_DASHBOARD_URL_PATH,
+                    ): str,
+                }
+            ),
+        )
+
+    @staticmethod
+    @callback
+    def async_get_options_flow(config_entry):
+        return LumaHomeOptionsFlow(config_entry)
+
+
+class LumaHomeOptionsFlow(config_entries.OptionsFlow):
+    """Handle options."""
+
+    def __init__(self, config_entry):
+        self.config_entry = config_entry
+
+    async def async_step_init(self, user_input=None):
+        if user_input is not None:
+            return self.async_create_entry(title="", data=user_input)
+
+        return self.async_show_form(
+            step_id="init",
+            data_schema=vol.Schema(
+                {
+                    vol.Required(
+                        CONF_DASHBOARD_URL_PATH,
+                        default=self.config_entry.data.get(
+                            CONF_DASHBOARD_URL_PATH, DEFAULT_DASHBOARD_URL_PATH
+                        ),
+                    ): str,
+                }
+            ),
+        )